Cultivation of four strains of the trachoma agent in allantoic cavity of the embryonated chicken egg.
D000818:Animals; D002642:Chick Embryo; D002689:Chlamydia / Q000302:isolation & purification*; D004530:Egg Yolk; D004531:Eggs; D005260:Female; D066298:In Vitro Techniques; D008722:Methods; D014141:Trachoma / Q000382:microbiology; D014776:Virus Cultivation